JavaScript Snippet

Tiny Template String Formatter

Difficulty: Medium

Sometimes you need a templating helper that does not pull in handlebars or eta, just enough to substitute `{name}` placeholders against a values object. This snippet starts with a 5-line interpolator, adds escape support so literal braces survive, and ends with a tagged-template-literal version that gives you compile-time placeholder safety. Drop it into i18n strings, log formatters, or email subject lines.